I liked this book, it whizzed by pretty quickly, but I'm not sure I want read any more books about an investigator who solves cases just by having a psychic experience. It seems a bit of a lazy way to me, just to say "all of a sudden Grove had a vision, and he knew who the killer was". That's over simplifying things a bit, but it was that sort of thing, Also,I prefer a whodunnit, with the killer revealed at the end, not on page 20 or so.